The Associated Press"Mad Men" actress Christina Hendricks, left, and her "I Don't Know How She Does It" co-star Olivia Munn, right, have recently become victims of an alleged nude photo hacking scandal. Both actresses deny the topless pictures are real.

"Mad Men" actress Christina Hendricks and her "I Don't Know How She Does It" co-star Olivia Munn are the latest victims of an alleged nude photo hacking scandal.

Both actresses deny the naked pictures that hit the Internet Sunday are real, however.

"Christina's phone was in fact hacked and photos were stolen," Hendricks' rep told E! News. "The proper authorities have been contacted in hopes of rectifying this situation."

Some of the photos are real, including one showing the curvy 36-year-old wearing lingerie and another with glasses and no make-up in a long-sleeved tan shirt. Another image shows a woman's breasts being exposed, but no face, which the rep insists isn't her client: "The topless image is fake and not an image of Christina."

It's not known if the real, non-nude photos were taken by Hendricks for her husband Geoffrey Arend or if they came from behind-the-scenes of racy fashion shoots. The actress, who plays Joan Holloway on AMC's "Mad Men," has previously told fans she'll never show full nudity on screen, The Daily Mail reports. The closest she's come was a scene in the 2002 TV series "Firefly" where she kissed the sci-fi show's star Nathan Fillion naked, but clever camera work protected her modesty.

Munn, 31, also admits that some of the "hacked" photos are legitimate, but denies the one topless photo -- also not showing the woman's face -- is real.

According to TMZ, the other photos -- including of her in pink lingerie, a black bra, a bikini, a low-cut v-neck -- have previously been posted by Munn on her blog and social media sites.

Munn's reps have not responded to the alleged phone hacking, but the former G4 "Attack of the Show" co-host poked fun at the rumors on Twitter.

"If you ever hacked my phone, these are the photos you'd find," she tweeted along with shots of a kitten and a chubby baby.

Munn and Hendricks are hardly the first actresses to be victims of alleged phone hackings. Scarlett Johansson, Mila Kunis, Jessica Alba, Vanessa Hudgens, Christina Aguilera, Demi Lovato, and Ashley Greene are just a handful of A-listers who have been caught in photo scandals in the last few years.

Christopher Chaney, 35, of Jacksonville, Fla., was arrested on October 9th after a yearlong FBI investigation of celebrity hacking that U.S. authorities dubbed 'Operation Hackerazzi.' If convicted, Chaney faces up to 121 years in prison.

Hendricks returns to "Mad Men" for a fifth season starting March 25 on AMC. Munn next appears in "The Newsroom," a new HBO series coming this summer written by Oscar- and Emmy-winning Syracuse University alumnus Aaron Sorkin.